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1.


    ALEKSEEV, K. N.
    CHAOTIC DYNAMICS IN LIGHT IMPURITY CENTER INTERACTION / K. N. ALEKSEEV, N. V. ALEKSEEVA // Phys. Lett. A. - 1992. - Vol. 162, Is. 1. - P. 82-85, DOI 10.1016/0375-9601(92)90965-O. - Cited References: 26 . - ISSN 0375-9601
РУБ Physics, Multidisciplinary
Рубрики:
QUANTUM OPTICS
   CRYSTALS

Аннотация: Interaction of an impurity center in crystal with light and crystal lattice vibrations is considered. Conditions of the transition to Hamiltonian chaos have been obtained for the case of strong and resonant electron-phonon coupling.

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Держатели документа:
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia, Russian Federation
ИФ СО РАН

Доп.точки доступа:
ALEKSEEVA, N. V.
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2.


   
    Antiferromagnetic dichroism in a complex multisublattice magnetoelectric CuB2O4 / K. N. Boldyrev [et al.] // Phys. Rev. Lett. - 2015. - Vol. 114, Is. 24. - Ст. 247210, DOI 10.1103/PhysRevLett.114.247210. - Cited References:40. - This study was supported by the Russian Academy of Sciences under the Programs for Basic Research, by the President of the Russian Federation (Grant No. MK-3521.2015.2, K. N. B.), by the Russian Foundation for Basic Research (Grants No. 15-32-20613, K. N. B., and No. 15-02-04222, R. V. P.), and by the Ministry of Education and Science of the Russian Federation (Grant No. 14.B25.0031.25, R. V. P.). . - ISSN 0031. - ISSN 1079-7114
   Перевод заглавия: Антиферромагнитный дихроизм в сложном многоподрешеточном магнетоэлектрике CuB2O4
РУБ Physics, Multidisciplinary
Рубрики:
MAGNETIC SOLITON LATTICE
   COPPER METABORATE

   GYROTROPIC BIREFRINGENCE

   SPECTROSCOPY

   EXCITATIONS

   TRANSITIONS

   CRYSTALS

   Cr2O3

   FIELD

Аннотация: Magnetic control of the crystal chirality was announced by Saito et al. [Phys. Rev. Lett. 101, (2008)] on the ground of experiments in CuB2O4. This claim has raised a sharp dispute in the literature because it seemed to contradict the fundamental symmetry principles. We settle this dispute on the basis of a high-resolution optical spectroscopy study of excitonic transitions in CuB2O4. We find that a large sublattice-sensitive antiferromagnetic linear dichroism (LD) emerges at the Néel temperature TN=21 K and show how it could simulate a “magnetic-field control of the crystal chirality.” We prove that the discovered LD is related microscopically to the magnetic Davydov splitting. This LD is highly sensitive to subtle changes in the spin subsystems, which allowed us to observe a splitting of the phase transition into an incommensurate magnetic phase into two transitions (T∗1=8.5 and T∗2=7.9 K) and to suggest elliptical spiral structures below T∗1, instead of a simple circular helix proposed earlier.
О магнитном контроле кристаллической хиральности сообщил Сайто и др. [Phys. Rev. Lett. 101, 117402 (2008)] на основании экспериментов в CuB2O4. Это требование вызвало резкий спор в литературе, потому что это казалось, противоречат основным принципам симметрии. Мы урегулировать этот спор на основе исследования с помощью оптической спектроскопии высокого разрешения экситонных переходов в CuB2O4. Мы считаем, что большой подрешетко-чувствительный антиферромагнитный линейный дихроизм (LD) возникает при температуре Нееля TN= 21 Kи показываем, как это может имитировать "контроль магнитным полем кристаллической хиральности." Мы докажем, что обнаруженный LD связанс микроскопическим магнитным Давыдовским расщеплением. Этот Л.Д. весьма чувствителен к тонким изменениям в спиновых подсистем, которые позволили нам наблюдать расщепление фазового перехода в несоизмеримы магнитная фаза в двух переходов (T*1= 8,5 и Т*2 = 7,9 К) и предположить эллиптическую спиральную структуру ниже T*1, вместо простой круговой спирали предложенный ранее.

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Держатели документа:
RAS, Inst Spect, Moscow 142190, Russia.
RAS, Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
RAS, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Boldyrev, K. N.; Pisarev, R. V.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Popova, M. N.; Russian Academy of Sciences under the Programs for Basic Research; Russian Federation [MK-3521.2015.2]; Russian Foundation for Basic Research [15-32-20613, 15-02-04222]; Ministry of Education and Science of the Russian Federation [14.B25.0031.25]
}
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3.


    BAGAUTDINOV, B. S.
    X-RAY-INVESTIGATIONS OF MODULATIONS IN CS2ZNI4 / B. S. BAGAUTDINOV, I. P. ALEKSANDROVA // Solid State Commun. - 1994. - Vol. 90, Is. 12. - P. 817-820, DOI 10.1016/0038-1098(94)90251-8. - Cited References: 8 . - ISSN 0038-1098
РУБ Physics, Condensed Matter
Рубрики:
INCOMMENSURATE PHASES
   CRYSTALS

   CS2CDI4

Аннотация: The X-ray diffractometer patterns of a reciprocal space have been analyzed in the modulated phases of Cs2ZnI4 crystals. The character of the atomic displacements in the modulation wave has been established. The temperature behaviour of both a modulation wave vector and amplitude has been determined from the position and intensity of satellite reflections.

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Держатели документа:
LV KIRENSKII INST PHYS,660036 KRASNOYARSK,RUSSIA
ИФ СО РАН

Доп.точки доступа:
ALEKSANDROVA, I. P.; Александрова, Инга Петровна
}
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4.


   
    Calorimetric and dielectric studies of the (NH4)(2)MoO2F4 oxyfluoride / V. D. Fokina [et al.] // Phys. Solid State. - 2010. - Vol. 52, Is. 1. - P. 158-166, DOI 10.1134/S1063783410010282. - Cited References: 22. - This study was supported by the Russian Foundation for Basic Research ( project no. 09-02-00062). . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   (NH4)(2)WO2F4

   DIFFRACTION

   MECHANISM

   CRYSTALS

Аннотация: The temperature dependences of the heat capacity, dielectric properties, and response to an external pressure and an electric field for the (NH4)(2)MoO2F4 oxyfluoride (space group Cmcm, Z = 4) have been studied. A comparative analysis of the data on the entropy of phase transitions, p-T phase diagrams, permittivity, and anomalous heat capacity in combination with the results of previous studies of the related compounds (NH4)(2)WO2F4 and (ND4)(2)WO2F4 has made it possible to establish that both [MO2F4](2-) anions and ammonium groups play a substantial role in the mechanism and nature of the structural transformations.

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Держатели документа:
[Fokina, V. D.
Bogdanov, E. V.
Bondarev, V. S.
Flerov, I. N.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Fokina, V. D.
Pogorel'tsev, E. I.
Bondarev, V. S.
Flerov, I. N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Laptash, N. M.] Russian Acad Sci, Far Eastern Branch, Inst Chem, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobody 79, Krasnoyarsk 660041, Russian Federation
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok 690022, Russian Federation

Доп.точки доступа:
Fokina, V. D.; Фокина, Валентина Дмитриевна; Bogdanov, E. V.; Богданов, Евгений Витальевич; Pogorel'tsev, E. I.; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
}
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5.


   
    Cascade of phase transitions in GdFe3(BO3)(4) / R. Z. Levitin [et al.] // JETP Letters. - 2004. - Vol. 79, Is. 9. - P. 423-426, DOI 10.1134/1.1776236. - Cited References: 8 . - ISSN 0021-3640
РУБ Physics, Multidisciplinary
Рубрики:
CRYSTALS
   ND

Аннотация: Cascade of phase transitions in GdFe3(BO3)(4) at 156, 37, and 9 K has been detected by specific heat measurements and further studied by Raman scattering and Nd3+ spectroscopic probe method. A weakly first-order structural phase transition at 156 K is followed by a second-order antiferromagnetic ordering phase transition at 37 K and a first-order spin-reorientational phase transition at 9 K. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia
Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia
Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Levitin, R. Z.; Popova, E. A.; Chtsherbov, R. M.; Vasiliev, A. N.; Popova, M. N.; Chukalina, E. P.; Klimin, S. A.; van Loosdrecht, PHM; Fausti, D.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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6.


    Chukalina, E. P.
    Spectroscopic study of magnetic phase transitions in NdxGd1-xFe3(BO3)(4) / E. P. Chukalina, L. N. Bezmaternykh // Phys. Solid State. - 2005. - Vol. 47: 12th Feofilov Workshop on Spectroscopy of Crystal Activated by Rare-Earth and Transition-Metal Ions (SEP 22-25, 2004, Yekaterinburg, RUSSIA), Is. 8. - P. 1528-1531, DOI 10.1134/1.2014507. - Cited References: 10 . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
CRYSTALS
   ND

Аннотация: Magnetic ordering and spin reorientation in iron borates NdxGd1 - xFe3(BO3)(4) (x = 0.01, 0.04, 0.25, 1.0) are studied using a rare-earth spectroscopic probe. (c) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Oblast, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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7.


   
    Effect of cation substitution in fluorine-oxygen molybdates (NH4)(2-x) A (x) MoO2F4 / E. V. Bogdanov [et al.] // Phys. Solid State. - 2011. - Vol. 53, Is. 2. - P. 303-308, DOI 10.1134/S1063783411020065. - Cited References: 11. - This study was supported by the Russian Foundation for Basic Research (project no. 09-02-00062) and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools of the Russian Federation (project no. NSh-1011.2008.2). . - ISSN 1063-7834
РУБ Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   CRYSTALS

   (NH4)(2)WO2F4

   DIFFRACTION

   OXYFLUORIDE

   MECHANISM

   DISORDER

Аннотация: Thermophysical and structural studies of (NH4)(2 - x) A (x) MoO2F4 (A = Cs, Rb, K) solid solutions of oxyfluorides have been performed. The character of the influence of cation substitutions on the stability of the initial phase (space group Cmcm) and on the mechanism of phase transitions has been elucidated.

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Держатели документа:
[Bogdanov, E. V.
Vasil'ev, A. D.
Flerov, I. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Vasil'ev, A. D.
Flerov, I. N.] Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660074, Russia
[Laptash, N. M.] Russian Acad Sci, Inst Chem, Far Eastern Branch, Vladivostok 690022, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, ul. Kirenskogo 28, Krasnoyarsk 660074, Russian Federation
Institute of Chemistry, Far Eastern Branch, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok 690022, Russian Federation

Доп.точки доступа:
Bogdanov, E. V.; Богданов, Евгений Витальевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Flerov, I. N.; Флёров, Игорь Николаевич; Laptash, N. M.
}
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8.


   
    Enhancing of magnetic flux pinning in YBa2Cu3O7-x/CuO granular composites / A. V. Ushakov [et al.] // J. Appl. Phys. - 2015. - Vol. 118, Is. 2. - Ст. 023907, DOI 10.1063/1.4926549. - Cited References: 27. - This work was supported in part by the Ministry of Education and Science of the Russian Federation (Project No. 11.370.2014/K). . - ISSN 0021-8979
РУБ Physics, Applied
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
   T-C SUPERCONDUCTORS

   CRITICAL CURRENTS

   GRAIN-BOUNDARIES

   CRYSTALS

   DEFECTS

Аннотация: This paper shows that the combination of self-assembled structures in the form of "whiskers" and nanoparticles, which appear as a result of the joint sintering powders YBa2Cu3O7-x and arc nanopowders CuO, leads to a significant increase in the current density and the appearance of the peak effect in strong magnetic fields range. Very high critical current density appears from a complex vortex pinning, where the defects in the form of "whiskers" provides more energy of pinning, and nanoparticles inhibit the flux creep. Regulation of the morphology of such structures can be achieved by simple change of the concentration of nanodispersed additives. It is shown that the optimal additive is CuO equal to 20 wt. %. © 2015 AIP Publishing LLC.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ushakov, A. V.; Karpov, I. V.; Lepeshev, A. A.; Лепешев, Анатолий Александрович; Petrov, M. I.; Петров, Михаил Иванович; Ministry of Education and Science of the Russian Federation [11.370.2014/K]
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9.


   
    Experimental and theoretical methods to study structural phase transition mechanisms in K3WO3F3 oxyfluoride / A. S. Krylov [et al.] // J. Solid State Chem. - 2014. - Vol. 218. - P. 32-37, DOI 10.1016/j.jssc.2014.05.028. - Cited References: 21. - The Authors are grateful to Prof. Zinenko V.I. for constructive discussion of the results. The work has been done with financial support of the Russian Foundation for Basic Research projects nos. 4828.2012.2, 12-02-31205; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" project no. 8379. . - ISSN 0022-4596. - ISSN 1095-726X
РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
LATTICE-DYNAMICS
   RAMAN-SCATTERING

   ELPASOLITE

   (NH4)3WO3F3

   SPECTROSCOPY

   CRYSTALS

Кл.слова (ненормированные):
Raman spectroscopy -- IR spectroscopy -- NMR spectroscopy -- High hydrostatic pressure -- Oxyfluorides -- Lattice dynamics calculations
Аннотация: The results of structural phase transitions mechanisms study in K3WO3F3oxyfluoride are represented by different experimental and theoretical methods. The structural phase transition anomalies at T1=452 K and T2=414 K of Raman and IR spectra have been analyzed. Using vibrational spectroscopy methods, the NMR-experiment has been done to clarify the nature of found phase transitions: displacive types or order-disorder types. The model of “disordered” crystal was proposed, and the results of lattice dynamics calculation in frameworks of the generalized Gordon–Kim method of ordered (R3) and “disordered” crystals were compared. The high pressure phases were studied by the Raman technique too.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Sofronova, S. N.; Софронова, Светлана Николаевна; Kolesnikova, E. M.; Колесникова, Евгения Михайловна; Ivanov, Y. N.; Иванов, Юрий Николаевич; Sukhovsky, A. A.; Суховский, Андрей Андреевич; Goryainov, S. V.; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Shestakov, N. P.; Шестаков, Николай Петрович; Kocharova, A. G.; Кочарова, Алла Георгиевна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Russian Foundation for Basic Research [4828.2012.2, 12-02-31205]; Federal Special Program "Scientific and scientific-pedagogical staff of innovative Russia" [8379]
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10.


   
    Experimental implementation of tunable hybrid Tamm-microcavity modes / P. S. Pankin, V. S. Sutormin, V. A. Gunyakov [et al.] // Appl. Phys. Lett. - 2021. - Vol. 119, Is. 16. - Ст. 161107, DOI 10.1063/5.0067179. - Cited References: 60. - The authors are grateful to M. N. Krakhalev for helpful discussions. Electrical control of hybrid modes was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research, Project No. 19-42-240004. Temperature control of hybrid modes was funded by Russian Foundation for Basic Research, Project No. 19-52-52006 and No. MOST 108-2923-E-009-003-MY3, Taiwan. P. S. Pankin is grateful for the support of the President of the Russian Federation under Grant No. MK-4012.2021.1.2. This study was supported by the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center KSC SB RAS . - ISSN 0003-6951. - ISSN 1077-3118
РУБ Physics, Applied
Рубрики:
STATES
   CRYSTALS

   LAYER

Аннотация: Mode hybridization is a unique way to manipulate the mode inside a fixed cavity or at interface. For example, Tamm plasmon-polariton at solid interface can be spectrally shifted without tuning the interface. Experimental implementation of tunable hybrid Tamm-microcavity modes is reported. The hybrid modes are excited in a one-dimensional photonic crystal bounded with a gold layer by attaching a nematic liquid crystal microcavity. Coupling between Tamm plasmon-polariton and microcavity modes leads to repulsion of their dispersion curves controlled by the refractive index of a liquid crystal and the polarization of incident light. Effective tuning of hybrid modes through heating or applying an external electric field to the liquid crystal layer is demonstrated. The experimentally measured strength coupling value between Tamm and microcavity modes was 20.7 meV.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
AO NPP Radiosvyaz, Krasnoyarsk 660021, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.
Natl Yang Ming Chiao Tung Univ, Tainan 71150, Taiwan.

Доп.точки доступа:
Pankin, P. S.; Панкин, Павел Сергеевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Zelenov, F. V.; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Masyugin, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Baron, F. A.; Барон, Филипп Алексеевич; Chen, K. P.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Territory; Krasnoyarsk Region Science and Technology Support Fund [19-42-240004]; Russian Foundation for Basic Research, TaiwanRussian Foundation for Basic Research (RFBR) [19-52-52006, MOST 108-2923-E-009-003-MY3]; Russian FederationRussian Federation [MK-4012.2021.1.2]; Krasnoyarsk Regional Center of Research Equipment of Federal Research Center KSC SB RAS
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